function formatTime(date) {
  var year = date.getFullYear()
  var month = date.getMonth() + 1
  var day = date.getDate()

  var hour = date.getHours()
  var minute = date.getMinutes()
  var second = date.getSeconds()


  return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}

function formatNumber(n) {
  n = n.toString()
  return n[1] ? n : '0' + n
}

module.exports = {
  formatTime: formatTime
}
function json2Form(json) {
  var str = [];
  for (var p in json) {
    str.push(encodeURIComponent(p) + "=" + encodeURIComponent(json[p]));
  }
  return str.join("&");
}
function string2json(json) {
  var str = [];
  for (var p in json) {
    str.push("\"" + encodeURIComponent(p) + "\"" + ":" + "\"" + encodeURIComponent(json[p]) + "\"") ;
  }
  return "{"+str.join(",")+"}";
}
function string2date(str){
  console.log(str)
  if(str!=null && str.length==14){
       return str.substring(0,4)+'-'+str.substring(4,6)+"-"+str.substring(6,8)+" "+str.substring(8,10)+":"+str.substring(10,12)+":"+str.substring(12,14)
  }
  if(str!=null && str.length==12){
    return str.substring(0,4)+'-'+str.substring(4,6)+"-"+str.substring(6,8)+" "+str.substring(8,10)+":"+str.substring(10,12)
  }
  if(str!=null && str.length==8){
    return str.substring(0,4)+'-'+str.substring(4,6)+"-"+str.substring(6,8)
  }
  return "";
}
module.exports = {
  formatTime : formatTime,
  json2Form : json2Form,
  string2json : string2json,
  string2date : string2date
}